Answer and explain please physics?

If a certain car, going with speed v1, rounds a level curve
with a radius R1, it is just on the verge of skidding. If
its speed is now doubled, the radius of the tightest curve
on the same road that it can round without skidding is:

A. 2R1
B. 4R1
C. R1/2
D. R1/4
E. R1
1 answer 1